Combination screen and ventilator.



H. L. THOMAS.

GOMBINATION SCREEN AND VENHLATOR.

APPLICATIQN FILED MAR. 5| l9l9.

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Ill. WHUMAS, E OR'UM LYNNE, lElll'NSYLVANlIAM UGMBINATION SCREEN ANDVENTILATO'BE.

specification bf Letters Patent.

Patented May 6, 1919.

application filed March 5, 1919. Serial No. QQQMG.

To all whom may concern:

Be it known that l, llAnIur L. THOMAS, a citizen of the United States,residing at Urn Lynne, in the county of Delaware an bate ofPennsylvania, have invented certain new and useful Improvements inCombination. Screens and Ventilators, of which the following is aspecification, reference'being had to the accompanying draw- 111 's,

dhis invention relates to an improved combination screen and ventilatorand an object of the invention is to provide an adjustable screen forinsertion between the lower part of the lower sash and the base of thewindow frame, thereby screening the window as Well as constituting oventilator.

The invention further aims to provide a device of this kind, which isconstructed in two sections, slidahly connected or united,

whereby the combined screen or ventilator may fit window frames ofvarious widths.

The invention further aim to provide means on the opposite ends of thesections, for locking the combined screen and ventilater to one of theguides cit-the lower sash. This locking or connecting means of theventilator or screen to the guide for the sash is of such constructionand design as to hold the screen or ventilator tightly against the lowerrail of the sash when lowered, as shown clearly in Figures 1 and 2.

The invention further aims to provide a combined screen and ventilator,each section of which is constructed from a single piece of sheet metal.v

A further object of the invention is to provide a combined screen andventilator that will lit any size window.

A. further object of the invention is to provide aj comhined ventilatorand screen which can be so installed and regulated as to permit thewindow to be easily raised and lowered, and to further provide a'screenor ventilator, that can be easily manipulated by ahybody with case andconvenience.

The combined screen or ventilator can be moved from one rooin'toanother, and it is obvious tha'r the same is storm proof,

and since the screened openings in the sec- While the design andconstruction at present illustrated andset forth is deemed preferable,it is obviousthat as a result of a reduction of the invention to a .more

practical form for commercial purposeathe invention may be susceptibleto changes, and the right to these changes is claimed,

provided they are comprehended within the scope of what is claimed.

lheinvention coniprlses further features and combinat on of parts, aswill be hereinafter set forth, shown in the drawings and detailperspective "Fig. 4-. an enlarged plan view of the blank from which one'ofithc ventilator is constructed.

Referring more especially to the drawings ctione of the "l and 2designate the 'jtivo sections of the on and ventilator. As shown in Fig.l it obvious tl'iat e'ach section is constructed from a single-I pieceof sheet metal. bent upon itself .3, to provide the Front downwardly.inclined face and the upper inclined portion 5. This portion 5 has anelongated opening 6, the marginal edge portions of which are slittedasshown at 7 to provide the holding tongues 8. 'lhcse tongues 8 are sodeflected as to overlie parts of a piece of wire fabric 9, to cover theopening. By thisconstruetion it is to be noted that the pieces oi wirefabric may be easily removed, for the insertion of new pieces, if sodesired. The sheet metal blank is bent upon itself as at 10, to providethe cud piece l1. and also bent at 12 to provide the end flange l3. Whenthe blank is bent longitudimtlly upon itself as previously stated, andthe bends l0 and 12 having been made, the flange is riveted to the underpiece, thereby closing the end ofthe screen or ventilator section. inthis regard each section of the ventilator is similarly constructed. Itis to be noted that the opposite end oi each section is minus theendpiece,

thereby permitting two sections to he slidably united, one to overliethe other, as shown clearly in Fig. 1. The lower part of the front wallof one of the sections an outwardly turned flange 15, provided with aguide If to receive the outwardly turned flange 17 of the lower part ofthe front wall of the other section. The upper part of the sectionvhaving the guide 16, is provided with a guide 18, for the reception ofthe upper part of the other section. By virtue of these guides, it isobvious that the two sections may be slidabiy united one over the other.The end piece 11 of each section has a laterally disposed flange 19. Aheaded stud projects vfrom the end piece 11, and the shank of this stud20 engages through the slot 21 of the adjustable plate This plate 22 hasa thumb engaging flange 23, and is also provided with an additionalflange 24, to cooperate with the flange of the end piece 11, to lock thescreenor ventilator and the inner guides of the lower sash, so as tohold the upper part of the screen or ventilator tightly against theinner surface of the lower rail of the sash. In order to fasten thescreen or ventilator in position, the plates are moved upwardly andoutwardly, so asto widen the space between the flanges of said platesand the flanges of the end pieces, to permit of the reception of theguides for the lower sash of the window. After the guides of the lowersash of the window are inserted between the flanges ot' the plates andthe flanges of the end pieces 11, the plates may be adjusted downwardlytoward the lower rail sash, so as to clamp the guides between thecooperating flanges.

The invcntion having bccn (l lorth. what is claimcd as new and usefulis;

1. In a combined scrccn and ventilator, the. combination with a pair ofsections slidably united and provided with scrccncd openings, the rcmotcends of the sections having end picccs provided with ll:l|l; "t. andmovable members carried by lhc end pic c having mcans cooperating withsaid llangcs tor clamping the guides for the lower sash of a window.

Z. in acombincd screen and ventilator, the combination with a pair ofsections. of means for slidably uniting the two sci-lions. said sectionshaving scrccncd openings, the remote ends of the sections having cndpieces, and means carried by the end pieces for clamping engagement withthe guides for the lower sash of tlic window.

3. In a combined. screen and ventilator, the combination with a pair ofsections, of means for slidably uniting the two sections, said sectionshaving screened openings, the ren'iote ends of the sections having endpieces, said end pieces having flanges vertically disposed. plateshuvingtlangcs to cooperate in parallelism with the first flanges forclamping the guides for the lower rail of a window, said plates havinginclined slots, and means passing through the slots and carried by theend pieces, for slidably supporting said plates.

In testimony whereof I hereunto atiix my signature in the presence oftwo witnesses.

HARRY L. THOlliAS.

Witnesses JOSEPH S. .Kna'rz, SAMUEL J. HoUsToN.

